buildah-mount

buildah-mount(1) General Commands Manual buildah-mount(1)

NAME

   buildah-mount - Mount a working container's root filesystem.

SYNOPSIS

   buildah mount [container ...]

DESCRIPTION

   Mounts the specified container's root file system in a location which can be accessed from the host, and returns its location.

   If the mount command is invoked without any arguments, the tool will list all of the currently mounted containers.

   When  running in rootless mode, mount runs in a different namespace so that the mounted volume might not be accessible from the host when using a driver dif‐
   ferent than vfs.  To be able to access the file system mounted, you might need to create the mount namespace separately as part of buildah unshare.   In  the
   environment created with buildah unshare you can then use buildah mount and have access to the mounted file system.

RETURN VALUE

   The location of the mounted file system.  On error an empty string and errno is returned.

OPTIONS

   --json

   Output in JSON format.

EXAMPLE

          buildah mount working-container
          /var/lib/containers/storage/overlay2/f3ac502d97b5681989dff84dfedc8354239bcecbdc2692f9a639f4e080a02364/merged

          buildah mount
          working-container /var/lib/containers/storage/overlay2/f3ac502d97b5681989dff84dfedc8354239bcecbdc2692f9a639f4e080a02364/merged
          fedora-working-container /var/lib/containers/storage/overlay2/0ff7d7ca68bed1ace424f9df154d2dd7b5a125c19d887f17653cbcd5b6e30ba1/merged

          buildah mount working-container fedora-working-container ubi8-working-container
          working-container /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
          fedora-working-container /var/lib/containers/storage/overlay/c3ec418be5bda5b72dca74c4d397e05829fe62ecd577dd7518b5f7fc1ca5f491/merged
          ubi8-working-container /var/lib/containers/storage/overlay/03a071f206f70f4fcae5379bd5126be86b5352dc2a0c3449cd6fca01b77ea868/merged

   If running in rootless mode, you need to do a buildah unshare first to use the mount point.

          $ buildah unshare
          # buildah mount working-container
          /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
          # cp foobar  /var/lib/containers/storage/overlay/f8cac5cce73e5102ab321cc5b57c0824035b5cb82b6822e3c86ebaff69fefa9c/merged
          # buildah unmount working-container
          # exit
          $ buildah commit  working-container newimage